WEST PALM BEACH — Investigators continue to look into the accident that left an 18-year-old woman dead after she tried to cross Interstate 95 and was fatally struck by a Lake Clarke Shores police officer.

Florida Highway Patrol spokesman, Lt. Tim Frith, said the investigation may take 60 days. He knows of no charges filed yet.

Samantha Jean Conlisk, of Lake Worth, was the passenger in a car that was stopped on the west shoulder of southbound I-95 south of Forest Hills Boulevard at 3:01 a.m. on Sunday, an FHP news release said.

She got out and tried to run to the road's east shoulder. She crossed the path of the police car, driven by Officer Clifford Zipnick, who was on routine patrol, the FHP report said.

Frith said Conlisk might have been in an argument with the driver and got out. He said the passengers and driver of the car had been in downtown West Palm Beach.

Although the investigation is continuing, Frith said pedestrians who try to cross the interstate usually are found at fault.